A Sick lie: to have a sick burp, but then purposefully encourage the burning hot sick up and out of the back of your delicate throat and on to such objects such as, tables, power points, electrical equipment and babies. Sick lies can achieve sympathy. They can also in able you to get out of meeting, detentions and lunch out with your step-mum. To pretend to be sick. To deceive your own body.
"If I did a Sick Lie I could be free"
"NO THAT WASN'T REAL SICK TERRY!!! YOU DID A SICK LIE!"
"He blatently just did a sick lie"